High Performance 2.4G Transceiver Module LT8900
Product Description
2.4G Transceiver Module Based on LT8900 Chip Design
Module introduction
Designed base on LT8900 wireless transceiver chip, DL-24LT is a compact, cost-effective, long-range RF transceiver module. This 2.4G module is widely used in the fields of smart home, toy model airplane and near range digital transmission control. The maximum transmitting power is 6dBm. The receiver adopts Low-IF Architecture, the receiving sensitivity can reach -87dbm, and the highest transmission rate can reach 1Mbps.
This 2.4GHz RF Module has integrated all radiofrequency related functions, and users can easily develop wireless products with stable performance and high reliability directly, which will extremely shorten the development cycle without in-depth understanding of RF circuit design SMD and DIP interface modes are adopted, but manual welding is required due to different thermal expansion coefficient of the black glue and the binding wire inside. Small module size makes it easy to use in portable products. And it can well meet the requirements of low-power system by combining with low-power MCU.
Applications
● Wireless Toy Controller
● Wireless keyboard, Mouse
● Wireless networking
● Intelligent home control
● Industrial and commercial close range communications
● IP phone, cordless phone
● Communication between machines
Features
● Support frequency hopping
● Supports SPI and I2C interfaces
● Built-in auto_ACK function
● Data rate 1Mbps
● Low power consumption
● Support signal energy detection
Download Center
Technical Parameter
DC characteristics
| Description | Min. | Max. | Unit |
| Power supply voltage | 1.8 | 3.6 | V |
Working current | RX ＜17mA | TX=18mA@2dbm | mA |
Stand-by current | ＜1uA | uA | |
| Voltage of IO Port | Vss-0.3 | Vdd+0.3 | V |
| Working temperature | -20 | +75 | ℃ |
Radio frequency characteristics (Unless otherwise stated, temperature 25 ℃, VCC 3.3V)
| No | Parameter | Reference Value Min.-Typ.-Max. | Unit |
| 1 | Applied Frequency Range | 2400,—，2483.5 | MHz |
| 2 | Frequency Interval | —,100K,— | Hz |
| 3 | Transmit Power | -17,—,6 | dBm |
| 4 | Reception sensitivity | —,-87,— | dBm |
| 5 | Modulation mode | GFSK,2-FSK,OOK | MSK |
| 6 | Transmission speed | 1.2,—,500 | Kbps |
| 7 | Harmonic power | -48,—,-45 | dBm |
| 8 | Communication Distance | 80,—,100 | M |
| 9 | Sensitivity at 2.4K | —,-80,— | dBm |
| 10 | OOK Modulation mode, Rate | —,—,100 | Kbps |
| 11 | Standby Power Consumption | —,—,0.9 | MHz |
| 12 | Crystal Precision *3225/2*6 | —,10,— | PPM |
Pin Definitions
| Pin No | Pin’s Name | Description |
| 1 | GND | Grounding, common ground with the system |
| 2 | VDD | Power Supply, DC 1.8-3.6V |
| 3 | RST | When RST_n is low, the chip will be turned off, the current <1uA, and the value of digital part will also be lost. If you want to keep the value of the digital register, you can enter sleep mode. When RST_ n is high, the chip will be turned on and the register will return to the reset value |
| 4 | SS | SPI: enable SPI signal, low level validity; or shift chip into sleep mode I2C: set the chip into sleep mode |
| 5 | CLK | Internal clock output |
| 6 | MOSI | SPI data input, MOSI |
| 7 | MISO | SPI data output, MISO |
| 8 | PKT | Transmit/Receive status support bit |
Size
DreamLNK can provide different kinds of 2.4G RF modules (Sensors for IoT application), include SOC embedded data transmission modules, intelligent IoT modules, industrial control data transmission modules, UART serial module, LoRaWan module, FSK Transceiver module, ASK Module, BLE module, WiFi module, etc. Welcome to inquire!